| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.79/5 | 3.95/5 |
| Vol 2 | 2.76/5 | 3.83/5 |
| Vol 3 | 2.88/5 | 4.20/5 |
| Vol 4 | 2.88/5 | 4.08/5 |
| Vol 5 | 2.70/5 | 3.66/5 |
| Vol 6 | 2.78/5 | 4.17/5 |
| Vol 7 | 2.92/5 | 4.30/5 |
| Vol 8 | 2.83/5 | 4.15/5 |
| Vol 9 | 2.82/5 | 4.03/5 |
| Vol 10 | 3.06/5 | 4.32/5 |
| Vol 11 | 3.11/5 | 4.42/5 |
| Vol 12 | 2.93/5 | 4.19/5 |
| Vol 13 | 3.14/5 | 4.40/5 |
| Vol 14 | 2.76/5 | 3.88/5 |
| Vol 15 | 2.78/5 | 4.15/5 |
| Vol 16 | 2.82/5 | 3.98/5 |
| Vol 17 | 2.85/5 | 4.11/5 |
| Vol 18 | 2.72/5 | 3.90/5 |
| Vol 19 | 2.56/5 | 2.93/5 |
| Vol 20 | 2.83/5 | 4.08/5 |
| Vol 21 | 2.65/5 | 3.58/5 |
| Vol 22 | 2.70/5 | 3.85/5 |
| Vol 23 | 2.74/5 | 4.07/5 |
| Vol 24 | 2.57/5 | 2.94/5 |
| Overall | 2.82/5 | 4.42/5 |